The functions of the MMU are to control the various memory systems, translate the virtual addresses into physical addresses and control the access permission.
MMU的功能是控制各种存储系统的工作并将虚地址转换成物理地址，以及控制存储器访问权限。
By use of besic functions of LIM expanded memory specifications, the paper gives constructed method of a real virtual array of expanded memory and its application in large scientific computations.
给出建立扩充内存的实型拟数虚拟数组的方法及其若干操作，指出它们在大型科学计算中的应用。
The only significant cost of virtual functions is one additional memory lookup before a virtual function can be called.
虚拟函数唯一一个明显的代价是在调用虚拟函数之前附加了一个存储查询。
The only significant cost of virtual functions is one additional memory lookup before a virtual function can be called.
虚拟函数唯一一个明显的代价是在调用虚拟函数之前附加了一个存储查询。
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